Billing & Usage
Stelar uses a subscription model with tiered plans. Usage beyond plan limits is metered and prepaid via platform credits.
Subscription plans
There are three plan tiers for both users and organizations:
| Plan | Price | Best for |
|---|---|---|
| Free | $0 | Individual exploration and small projects. |
| Plus | $10 / month | Active developers needing more accounts, repos, and API capacity. |
| Pro | $20 / month | Professional teams requiring collaboration, multisig, and advanced billing. |
Feature limits
Each plan defines limits across all product areas. Key limits include:
- Maximum accounts, subscriptions, payments, and webhooks in Wallet.
- Maximum repositories and environments in Code.
- Maximum API keys and links on Platform.
- Organization member counts and feature gates (collaboration, multisig, billing automation).
See the Pricing page for the current limit table.
Platform credits
Platform API usage (data queries and evals) draws from a credit balance on your PlatformProfile. Credits are purchased in USD via Stripe — the amount is converted to ASTR at the current exchange rate and credited to your profile. Each API key and link also has its own balance to prevent runaway spend.
How spend is tracked
Every data query and eval call is logged with two meters:
- Data spend — bytes transferred for blockchain queries.
- Eval spend — compute units consumed during expression evaluation.
Both meters are deducted from the key or link's balance. You can view your spend history on the Platform home page and on each key or link detail page.
Plan changes
Plans sync automatically via a daily background task. Upgrading takes effect at the next billing cycle. Downgrading may reduce your feature limits — ensure your active resources fit within the new plan before switching.